Sliding bow and rotating brush for electrically-driven vehicles.



e. MEYER. Y SLIDING BOW AND ROTATING BRUSH FOR ELECTRICALLY DRIVEN VEHICLES.

APPLICATION FILED NOV- 3- 1914.

1,201,603. Patented Oct. 17,1916.

2 SHEETS-SHEET 1.

G. MEYER.

SLIDING BOW AND ROTATING BRUSH FOR ELECTRICALLY DRIVEN VEHICLES.

APPLICATION FILED NOV. 3. l9I4. V

2 SHEETS- SHEET 2. v

Patented Oct. 17,

m r NKINNIS PETERS ca, Funny-Limo" wasmm: mu, 0. c.

GO'ITFRIED MEYER, or ZURICH, SWITZERLAND.

Specification of Letters Patent.

Patented (lot. 17, 1916.

Application filed November 3, 1914. Serial No. 870,113.

To all whom it may concern:

Be it known that I, GOTTFRIED MEYER, a citizen of the Republic of Switzerland, re siding at Zurich, in the Canton of Zurich, Republic of Switzerland, have invented certain new and useful Improvements in Sliding Bows and Rotating Brushes for Electrically-Driven Vehicles; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, ref erence being had to the accompanying drawings, and to letters of reference marked thereon, which form a part of this specification.

This invention relates to'trolley poles or bows of the kind wherein positively guided weights are provided to maintain the electricity collector against the overhead wire.

According to the present invention a long and flat actuating weight or weights is or are placed between the roof of the vehicle and the pivotal axis of the pole or of the bow to which it is connected by means of a link or links, the center of gravity of the weight or of each weight and the point or points of its connection with the link or links being disposed in the vertical plane containing the said pivotal axis.

A vehicle equipped with a trolley pole or bow arranged in accordance with the inven tion can pass under very low bridges without excessive pressure being produced between the overhead wire and the electricity collector carried by the pole or the bow.

The accompanying drawings illustrate various embodiments of the invention.

Figures 1 and 2 are a side and an end elevation, respectively, of one embodiment of the invention. Fig. 3 is a diagrammatic end view of a second embodiment. Figs. 4 and 5 are a side and an end view respectively, of a third embodiment. Figs. 6 and 7 are, respectively, side elevations of a fourth and of a fifth embodiment of the invention.

Referring to the embodiment illustrated in Figs. 1 and 2, the side levers 10 of a bow (not shown) are freely journaled upon a shaft 4 supported by brackets 3 which are mounted on bearers fixed upon the roof 2 of a vehicle. Centrally of the roof of'the vehicle, between the latter and the shaft 4, a

weight 5 is arranged symmetrically in respect to the vertical plane containing the axis of the shaft 4-, the mass being sufficient to insure that the bow will be pressed with sufficient force against the trolley wire. The weight 5 is guided by two rigid vertical bars 6 and is connected with the lower end of the downwardly extending arm 9 of each of the side levers 10'by means of links 7. The points of connection of the links 7 with the Weight 5 are disposed in the vertical plane containing the axis of the shaft 1 so that angular displacement of the weight is avoided.

In the embodiment according to Fig. 3, the side levers 10 of the bow are secured upon a shaft 8. journaled in brackets 3. At the ends of said shaft are fixed arms 9" which are pivotally connected with the links 7. In this embodiment two weights 5, each sliding on bars 6, are provided.

In the embodiment according to Figs. 4- and '5 two arms 11 of the bow are freely mounted on a shaft 4: supported by brackets 3. On the shaft 4 are also loosely journaled two arms 9 the upper end of each of which is formed as a yoke 12. The lower end of each arm 9 is connected by means of a link 7 with the weight 5.

Each arm 11 is provided with a lug 100 engaging the adjacent yoke 12. According to the position of the bow each of the lugs 100 engages one or the other of the arms of the yoke 12. Owing to the pressure exerted by the arms of the yokes 12 upon the lugs the bow is pressed against the overhead wire. 1

In consequence of its narrow formation and of its disposition below the shaft 4 the weight is capable of being accommodated between bearers on the roof of the vehicle. A further advantage presented by this arrangement is that the weight may be located very low and out of sight, which is impossible in prior arrangements where the weight remained at all times above the roof of the vehicle. Thev low disposition of the weight permits the vehicle to pass under low bridges or other. structures without difiiculty.

Suspended from the bearers 1 are straps 14 interconnected by a rail 15 to which are secured the upright guide bars 6. The

weight is provided with upwardly projecting guide sockets 16 embracing the bars 6 and thus insuring positive guidance of the weight.

The weight acting through the intermediary of the links 7 presses the arms of the in one or the other direction and thus forces the electricity collector at the end of the bow against the overhead wire. Lateral movement of the weight is prevented by the guide bars 6.

It will be understood that when the bow is swung from one position into the other there is a certain amount of lost motion in consequence of the yoke and lug connection 12 whereby the manipulation of the bow is facilitated.

In the embodiment shown in F 6, double armed levers 9 are loosely mounted upon the shaft 4 adjacent to each end of said shaft, the upper end of each lever being adapted to act upon a lug 100 provided on side of lever 11 of the bow. The bow may be freely moved within limits determined by the upper end of each lever 9. The lower end of each lever 9 is connected by means of a link 7 with a weight 5. The weight when moving down, abuts against the straps 14: before the upper ends of the levers are closed together.

In the case of a polygonally arranged bow as shown in Fig. 7, theelectricity collector 19 is moved vertically against the overhead wire 20, the lower polygonal arms 90 being extended below the pivotal axis and connected by means of links 7 with a weight 5. In this case also angular displacement and lateral oscillation of the weight 5 are prevented.

The weight and the guide bars 6 are preferably covered by a casing in order to protect these parts from dust and atmospheric influences.

It will be understood that the arrangement of trolley bow or pole and of the means for pressing the bow or pole against the overhead wire is susceptible of modification without departure from the spirit of the invention.

What I claim is 1. In a bow construction for electrically propelled vehicles the combination with a long and flat actuating weight vertically guided and horizontally arranged between the roof of the vehicle .and the pivotal supporting axis of the bow and symmetrically with respect to the vertical plane containing said axis, of a bow pivoted in brackets for free movement in a vertical plane and links connecting the bow with the actuating weight in such a manner that the points of connection of said links with the weight are located in the said plane.

2. In a bow construction, the combination with a long and flat actuating weight horizontally arranged between the roof of the vehicle and the pivotal supporting axis of the bow and symmetrically with respect to the vertical plane containing said axis, of a bow pivoted in brackets for free movement in a. vertical plane, links connecting the bow with the actuating weight in such a manner that the points of connection of said links with the weight are located in the said plane and longitudinal bearers on the roof of the vehicle between which the weight is located and guided by bars carried by said bearers.

'3. In a bow construction, the combination with a long and flat actuating weight horizontally arranged between the roof of the vehicle and the pivotal supporting axis of the bow and symmetrically with respect to the vertical plane containing said axis, of a bow pivoted in brackets for free movement in a vertical plane, arms loosely mounted on the supporting axis of the bow and permitting idle motion of the latter to facilitate manipulation of the bow, links connecting the said arms with the actuating weight in such a manner that the points of connection of said links with the weight is located in the said plane and longitudinal bearers on the roof of the vehicle between which the weight is located and guided by bars carried by said bearers.

4. In a bow construction, the combination with a long and flat actuating weight vertically guided and horizontally arranged between the roof of the vehicle and the pivotal supporting axis of the bow and symmetrical with respect to the vertical plane containing said axis, of a bow pivoted in brackets for free movement in a vertical plane, links connecting the bow with the actuating weight in such a manner that the points of connection of said links with the weight are located in the said plane, and a guiding means for the weight.

5. In a bow construction, the combination with a long and flat actuating weight horizontally arranged between the roof of the vehicle and the pivotal supporting axis of the bow and symmetrical with respect to the vertical plane containing said axis, of a bow pivoted in brackets for free movement in a vertical plane, links connecting the pole or bow with the actuating weight in such a manner that the points of connection of said links, with the weight are located in the said plane, and longitudinal bearers on the roof of the vehicle between which the weight is located and guided by bars carried by said bearers.

In testimony whereof, I have signed my name to this specification in the presence of two subscribing witnesses.

GOTTFRIED MEYER.

Witnesses:

HERMANN HUBER, BERTHA C. GRoL.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. 

